PMC:523229 / 512-521 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T303","span":{"begin":5,"end":9},"obj":"VBN"},{"id":"T316","span":{"begin":1,"end":4},"obj":"RB"}],"relations":[{"id":"R81","pred":"neg","subj":"T316","obj":"T303"}],"text":" not been"}